Questions tagged [pset1-credit]
The pset1-credit tag has no usage guidance.
28
questions
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pset1 credit.c file EMPTY?
this is my first question in this community.
I just downloaded the zip file for pset1, problem credit (more comfortable)
is the file actually empty ?
could it be that I did something wrong?
thank you ...
0
votes
1
answer
15
views
Need Help, why does my debug50 show a correct result but when i run the program, thus it shows a wrong answer
Here's my code
#include <cs50.h>
#include <stdio.h>
#include <math.h>
//1:26:36 / 2:24:59
int main(void)
{
long n;
int exc;
do
{
n = get_long("Enter your ...
- 3
0
votes
1
answer
62
views
credit.c I don't understand how to fix my code
I've been trying to figure out what's wrong with my code. I used printf so I could confirm whether or not the value of N is correct but it's coming out as completely different as what I would expect ...
- 1
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1
answer
38
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CS50 Credit Pset problem- Code keeps looping back to ask for the credit card number
The following is my code for the Credit Pset from week 1 of CS50, it is not the complete solution to the problem (all the code does (rather is supposed to do) is for the user to enter a credit card ...
- 3
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1
answer
32
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Cs50 pset1 problem credit
I'm not able to take out the second digit of the credit number, how to do it for large numbers like 16 digit,15digit,14 digit?
0
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1
answer
19
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Credit problem: Opening parentheses not matched with closing
Though it might appear annoying, the program not compiling. To the best of my understanding, there is a closing parenthesis on line 37. Is it some cache related issue?
https://drive.google.com/file/d/...
1
vote
1
answer
48
views
Function in C: How to create
#include <stdio.h>
#include <cs50.h>
int main(void)
{
long creditcardno;
do
{
creditcardno =
get_long("enter");
}
while (creditcardno < 0);
}
The above code accepts ...
0
votes
1
answer
90
views
Could not find the following in the output: <class 'pexpect.exceptions.EOF'>
#include <stdio.h>
#include <cs50.h>
int main(void)
{
long creditcardno;
do
{
creditcardno = get_long("enter");
if (creditcardno < 999999999999 || creditcardno ...
0
votes
1
answer
94
views
Credit card problem: Unable to calculate the sum of entered credit card no
#include <stdio.h>
#include <cs50.h>
int main(void)
{
long creditcardno;
do
{
creditcardno = get_long("enter");
}
while (creditcardno < 1000000000000 || creditcardno > ...
0
votes
2
answers
14
views
Unable to move to the next chunk of the problem
#include <stdio.h>
#include <cs50.h>
int main(void)
{
long creditcardno;
do
{
creditcardno = get_long("enter");
}
while (creditcardno < 1000000000000 || creditcardno > ...
1
vote
1
answer
62
views
Pset1- Credit: Length of the number by continuously dividing by 10
// Get card number
long n = get_long("Number: ");
// Count length
int i = 0;
long cc = n;
while (cc > 0)
{
cc = cc / 10;
i++;
}
Source: https://medium.com/swlh/cs50-pset-1-credit-...
0
votes
1
answer
25
views
Do-while code for long integer input
It is mentioned in the problem:
American Express uses 15-digit numbers, MasterCard uses 16-digit numbers, and Visa uses 13- and 16-digit numbers.
So with get_long, I perhaps need to restrict input ...
0
votes
1
answer
54
views
Segmentation Fault for PSet1 Credit in CS50
first time posting. I swear I looked for answers in other segmentation fault questions already, but I am new to programming and to troubleshooting/researching effectively.
My PSet1 program "...
- 3
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votes
1
answer
64
views
Pset1:credit - converting a long to a string causes a segfault?
I keep getting a segfault, and help50 doesn't help. A lot of head scratching an googling later, I think I've narrowed it down to: you can't convert a long to a string. Is that true?
The code in ...
- 11
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votes
1
answer
33
views
PSET1 - credit ,not satisfying all test cases ,please help
These are the test cases which my code doesn't satisfy ,can someone please help me out as i have absolutely no idea why it is happening.
Some tips or advice would be handy. Thank you in advance.
:( ...
0
votes
1
answer
41
views
Pset1 Credit - Why is my code bypassing the Floor function inside If statement?
Here's my code-
int f_1 = floor(N / 1000000000000000);
int f_2 = floor(N / 1000000000000);
int f_3 = floor(N / 100000000000000);
int f_4 = floor(N / 10000000000000);
if (...
0
votes
1
answer
42
views
Pset1 Credit- How should I proceed to add the sum of multiplied digits & further addition with remaining credit card numbers?
I can pretty much select the digits, multiply the digits by 2 & add the particular digits of the multiplied number. But as of now I can only print them not add them. I also have to add this sum to ...
0
votes
1
answer
25
views
expected expression error in pset1 credit for loop
I am getting a error in the following line
long checksum = (long) for (int i=1; i < 8; i=i+2)
{
if (checksum > 9)
{
(((long) 2*(credit_number % (long) ...
- 156
0
votes
2
answers
104
views
Can anyone help me troubleshoot my code for the CS50 Credit problem? (**not trying to cheat, just need some help!)
This is the code I have written in c for the cs50 credit pset 1 problem.
I am checking the length of numbers entered, and the first digits (AMEX 15 digits, starts with 34 or 37; MC 16 digits, starts ...
- 3
0
votes
1
answer
248
views
How do you find the first digit of a long number?
I wrote the following code to try to find the first digit of a long number (this is for the CS50x "Credit" exercise), but it's not working. Any tips?
// Conditions and relational operators
#...
- 15
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1
answer
39
views
Stuck with pset1 credit question. I don't know why I'm not able to get any "Valid" outputs when a valid card number is entered
#include <stdio.h>
#include <cs50.h>
#include <math.h>
#include <stdlib.h>
int main (void)
{
int count = 0; //Declare counter
//Get input from user
long number = get_long (&...
0
votes
1
answer
76
views
trying to check second to last digit-- cs50 pset 1 #credit#
I am trying to understand the second to last digit thing, i think i have been coding wrong the whole time.
take this example 45002136581 in the walk through the guy says we take 5 0 2 1 5 1. while i ...
0
votes
1
answer
74
views
PSET 1 Credit AMEX
I've calculated the Luhn's algorithm for all the credit cards and it works fine. The only issue I have is that the American Express cards which are tested don't fulfill the Luhn's algorithm!
This is ...
1
vote
1
answer
98
views
cs50 pset1 credit expected expression error
So, I have gotten rid of all the errors and got the code to the point to prompt the user for the credit card number and output an answer the only problem is the program falls thru to invalid every ...
- 15
0
votes
1
answer
2k
views
How To Use a For Loop To Store Values Into Multiple Variables?
I'm working on the Credit problem set. Along the way, I've encountered a scenario where I want to use a for loop to store multiple values. If I type printf("%d", cc_number[p]); in that for loop, it ...
0
votes
1
answer
47
views
Help in PSET1: Credit. Check50 not showing up
I finished (what I think) is a correct version of credit and when I submit, I only see marks for style and no check50 on the submit50 page.
Also, when I do check50 in the terminal window, I get a "...
0
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1
answer
136
views
Credit.c works, but not completely?
So I finished credit.c today and was trying out different numbers from the paypal website the course provided and got some unexpected results and don't know what to do with it. When I type in valid ...
- 107
1
vote
2
answers
147
views
error at while loop cs50 Pset1 credit
I am getting an error at while loop it says
error: '&&' within '||' [-Werror,-Wlogical-op-parentheses]
while((credit % 10 >= 0) && (i < 15) || (i < 16))
here is my ...